Benzo(a)pyrene violations in Illinois
107 active public water systems in Illinois had a Benzo(a)pyrene violation in the past three years, 11 of them in the latest quarter of EPA's data. What Benzo(a)pyrene is and why it matters.
Systems with a Benzo(a)pyrene violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Highland Highland · Madison County |
10,674 | 3 | 0 | |
|
Staunton Staunton · Macoupin County |
5,756 | 4 | 0 | |
|
Prospect Heights Plaza Cook County |
1,240 | 6 | 2 | |
|
Vienna Correctional Center Johnson County |
501 | 3 | 0 | |
|
Maranatha Bible Church Cook County |
213 | 3 | 0 | |
|
Mindhaven Academy McHenry County |
100 | 7 | 1 | |
|
Criswell Court MHP Joliet · Will County |
94 | 8 | 3 | |
|
Career Center of Southern Illinois Monroe County |
50 | 9 | 2 | |
|
Walnut Grove MHC Champaign County |
40 | 5 | 0 | |
|
Nussbaum Transportation Well #3 McLean County |
30 | 2 | 0 | |
|
Winnebago Landfill Winnebago County |
25 | 3 | 0 | |
|
Naperville Naperville · DuPage County |
156,406 | 1 | 0 | |
|
Lockport Lockport · Will County |
23,100 | 4 | 0 | |
|
Shorewood Shorewood · Will County |
18,645 | 3 | 0 | |
|
Fox Lake Fox Lake · Lake County |
11,780 | 5 | 1 | |
|
Manhattan Manhattan · Will County |
10,340 | 1 | 0 | |
|
IL American-Whispering Hills McHenry County |
8,300 | 4 | 0 | |
|
Volo Volo · Lake County |
6,629 | 2 | 0 | |
|
Fountain Water District Valmeyer · Monroe County |
4,350 | 3 | 0 | |
|
Hainesville Hainesville · Lake County |
3,528 | 1 | 0 | |
|
Olin Winchester LLC Madison County |
3,250 | 2 | 0 | |
|
Dawson Dawson · Sangamon County |
2,375 | 5 | 1 | |
|
Glen Ellyn Heights Subdivision DuPage County |
1,931 | 4 | 1 | |
|
Northwest Bible Baptist Church Kane County |
1,600 | 4 | 0 | |
|
Clifton Clifton · Iroquois County |
1,500 | 1 | 0 | |
|
ST Anne Saint Anne · Kankakee County |
1,200 | 4 | 0 | |
|
Central High School Kane County |
1,001 | 6 | 2 | |
|
IL American-Walk UP Woods McHenry County |
775 | 3 | 0 | |
|
Central Middle School Kane County |
750 | 5 | 1 | |
|
Merichkas Will County |
700 | 4 | 0 | |
|
Snap on Tools McHenry County |
700 | 7 | 0 | |
|
Balmoral Elem Will County |
645 | 4 | 1 | |
|
ST Francisville Saint Francisville · Lawrence County |
583 | 7 | 0 | |
|
Howard B Thomas Grade School Kane County |
575 | 5 | 1 | |
|
Constellation Clinton Power Station De Witt County |
515 | 5 | 0 | |
|
Biltmore C C Main Building Lake County |
500 | 6 | 1 | |
|
North Boone High School Boone County |
500 | 6 | 2 | |
|
Spring Grove Elementary School McHenry County |
500 | 6 | 0 | |
|
Fremont Intermediate School 3-5 Lake County |
450 | 2 | 0 | |
|
Bay View Baptist Church Tazewell County |
425 | 2 | 0 | |
|
Midland High School Marshall County |
410 | 5 | 1 | |
|
Greater Quad City Auto Auction Rock Island County |
340 | 6 | 1 | |
|
Fremont School Dist 6-8 Lake County |
325 | 2 | 0 | |
|
Victory Christian Center McLean County |
325 | 8 | 1 | |
|
Apachi Day Camp Lake County |
300 | 6 | 2 | |
|
Barrington Hills CC Clbhse 1&3 Lake County |
300 | 3 | 1 | |
|
Eisenhower Academy Will County |
300 | 6 | 2 | |
|
Fox Valley YMCA & Preschool Kendall County |
300 | 5 | 1 | |
|
Deland Weldon Piatt County |
280 | 6 | 1 | |
|
IL American-Valentine Lake County |
252 | 3 | 0 |
About this data
A system is counted once if any of its violations in the past three years involved Benzo(a)pyrene, including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Benzo(a)pyrene alone.
Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Illinois records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet.